package com.company.base.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;
import java.util.Properties;

import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

public class HttpUtil {
	/**
	 * 向指定URL发送GET方法的请求
	 * 
	 * @param url
	 *            发送请求的URL
	 * @param param
	 *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
	 * @return URL 所代表远程资源的响应结果
	 */
	public static String sendGet(String url, String param) {
		String result = "";
		BufferedReader in = null;
		try {
			String urlNameString = url + "?" + param;
			URL realUrl = new URL(urlNameString);
			// 打开和URL之间的连接
			URLConnection connection = realUrl.openConnection();
			// 设置通用的请求属性
			connection.setRequestProperty("accept", "*/*");
			connection.setRequestProperty("connection", "Keep-Alive");
			connection.setRequestProperty("user-agent",
					"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
			// 建立实际的连接
			connection.connect();
			// 获取所有响应头字段
			Map<String, List<String>> map = connection.getHeaderFields();
			// 遍历所有的响应头字段
			for (String key : map.keySet()) {
				System.out.println(key + "--->" + map.get(key));
			}
			// 定义 BufferedReader输入流来读取URL的响应
			in = new BufferedReader(new InputStreamReader(
					connection.getInputStream()));
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
		} catch (Exception e) {
			System.out.println("发送GET请求出现异常！" + e);
			e.printStackTrace();
		}
		// 使用finally块来关闭输入流
		finally {
			try {
				if (in != null) {
					in.close();
				}
			} catch (Exception e2) {
				e2.printStackTrace();
			}
		}
		return result;
	}

	/**
	 * 向指定 URL 发送POST方法的请求
	 * 
	 * @param url
	 *            发送请求的 URL
	 * @param param
	 *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
	 * @return 所代表远程资源的响应结果
	 */
	public static String sendPost(String url, String param) {
		PrintWriter out = null;
		BufferedReader in = null;
		String result = "";
		try {
			URL realUrl = new URL(url);
			// 打开和URL之间的连接
			URLConnection conn = realUrl.openConnection();
			// 设置通用的请求属性
			conn.setRequestProperty("accept", "*/*");
			conn.setRequestProperty("connection", "Keep-Alive");
			conn.setRequestProperty("user-agent",
					"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
			// 发送POST请求必须设置如下两行
			conn.setDoOutput(true);
			conn.setDoInput(true);
			// 获取URLConnection对象对应的输出流
			out = new PrintWriter(conn.getOutputStream());
			// 发送请求参数
			out.print(param);
			// flush输出流的缓冲
			out.flush();
			// 定义BufferedReader输入流来读取URL的响应
			in = new BufferedReader(new InputStreamReader(
					conn.getInputStream(), "UTF-8"));
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
		} catch (Exception e) {
			System.out.println("发送 POST 请求出现异常！" + e);
			e.printStackTrace();
		}
		// 使用finally块来关闭输出流、输入流
		finally {
			try {
				if (out != null) {
					out.close();
				}
				if (in != null) {
					in.close();
				}
			} catch (IOException ex) {
				ex.printStackTrace();
			}
		}
		return result;
	}

	public static String requestPost(String url, List<NameValuePair> params)
			throws ClientProtocolException, IOException {
		// url = "http://localhost:8080/CSGAOracle/smsService/sendSms.htm";
		Properties p = new Properties();
		InputStream in = HttpUtil.class.getResourceAsStream("/systemconfig.properties");
		p.load(in);
		Enumeration en = p.propertyNames();
		while (en.hasMoreElements()) {
			String key = (String) en.nextElement();
			if ("SMS_URL".equals(key)) {
				url = p.getProperty(key);
			}
		}
		CloseableHttpClient httpclient = HttpClientBuilder.create().build();
		HttpPost httppost = new HttpPost(url);
		httppost.setEntity(new UrlEncodedFormEntity(params, "utf-8"));

		CloseableHttpResponse response = httpclient.execute(httppost);
		System.out.println(response.toString());

		HttpEntity entity = response.getEntity();
		String jsonStr = EntityUtils.toString(entity, "utf-8");
		System.out.println(jsonStr);

		httppost.releaseConnection();
		return jsonStr;
	}

	public static void main(String[] args) throws UnsupportedEncodingException {
		// 发送 GET 请求
		// String s=HttpUtil.sendGet("http://localhost:6144/Home/RequestString",
		// "key=123&v=456");
		// System.out.println(s);

		// 发送 POST 请求
		// String signature=MD5.MD5Encode("周小弟tel:123CSGA");
		// String
		// sr=HttpUtil.sendPost("http://localhost:8080/CSGAOracle/smsService/sendSms.htm",
		// "signature="+signature+"&message=周小弟&telephone=tel:123&telephone=tel:3asd&telephone=tel:asd");
		// String result=new String(sr.getBytes("iso-8859-1"),"UTF-8");
		// System.out.println("结果："+result);
		try {
			//String loginUrl = "http://localhost:8080/CSGAOracle/smsService/sendSms.htm";
			List<NameValuePair> params = new ArrayList<NameValuePair>();
			params.add(new BasicNameValuePair("message", "关公"));
			params.add(new BasicNameValuePair("telephone", "tel:1234566"));
			params.add(new BasicNameValuePair("telephone", "tel:123456s"));
			params.add(new BasicNameValuePair("telephone", "tel:1234561"));
			params.add(new BasicNameValuePair("telephone", "tel:1234563"));
			//params.add(new BasicNameValuePair("signature", MD5Util.MD5Encode("关公tel:1234566CSGA")));
			requestPost("", params);
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}
